人教版九年级上册英语教学课件pptUnit13SectionA1a2d

学练优九年级英语下（RJ）教学课件SectionA(1a-2d)Unit13We'retryingtosavetheearth!学习目标Keywords&phrases:litter,bottom,fisherman,coal,ugly,advantage,cost,wooden,plastic,makeadifferenceKeysentences:1.Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.2.Butitusedtobesoclean!3.Yes,butpeoplearethrowinglitterintotheriver.ReadandlearnWordsandexpressionsLeadinTheearthispolluted.airpollutionThefactoriesthatburncoalpollutetheairwithalotofblacksmoke.waterpollutionFactoriesputwasteintotheriver.litterv.乱扔n.垃圾rubbishwaste垃圾废弃物mobilephonepollutionnoisepollutionTherearemorecarsontheroad.Presentation1aHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.loudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephonesnoisepollution________________________________________________airpollution____________________________________________waterpollution________________________________________________loudmusicplanesmobilephonesfactoriescarssmokingshipsfactorieslitteringrubbishbuildinghousesbuildinghouses1bListenandcompletethesentences.Whatwastheproblem?Theriverwas_____________.Eventhebottom(底部)oftheriverwasfullof_________.Therewerenomore______forfishermen(渔民)tocatch.reallydirtyrubbishfishWhatcausedtheproblem?Peoplearethrowing_______intotheriver.Factoriesareputting______intotheriver.Howshouldtheproblembesolved?Weshouldwritetothe____________andaskthemto___________thefactories.Everyoneshouldhelpto__________theriver.litterwastegovernmentclosedowncleanup1cTheriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Butitusedtobesoclean!Role-playtheconversation.Yes,butpeoplearethrowinglitterintotheriver.Everyoneinthistownshouldplayapartincleaningitup!Makeconversationsusingthepollutionin1a.......Languagepoints1.We’retryingtosavetheearth!我们正在竭尽全力拯救地球!trytodosth.=tryone’sbesttodosth.努力去做某事。e.g.Everystudentshouldtrytostudyhardinordertostudyinagooduniversity.为了进入一所好大学学习，每个学生都应该努力学习。2.Herearesomewordsrelatedtodifferentkindsofpollution.berelatedto与……有关e.g.Iamnotrelatedtohiminanyway.我和他无任何关系。3.Everyoneinthistownshouldplayapartincleaningitup!playapartin在……方面起作用e.g.Agooddietplaysalargepartinhelpingpeoplelivelonger.健康的饮食在帮助人们长寿方面起着非常大的作用。playapart在……中扮演角色e.g.HewasinvitedtoplayapartinthisTVplay.他被邀请参加这个电视剧的演出。4.Eventhebottomoftheriverwasfullofrubbish.Yes,butpeoplearethrowinglitterintotheriver.litter和rubbish都可指“垃圾”，用作不可数名词。rubbish指“没用的东西(被扔或将要丢弃的无用的东西)”不可回收。litter指“(室内或公共场所)乱扔的废物(纸屑、不要的包装纸、废瓶等)”还可回收。e.g.Throwtherubbishout.把垃圾扔出去。Theroomisfullofrubbish.房间里堆满了垃圾。Pickupyourlitterafterapicnic.野餐后将废弃物收拾好。2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.A.landpollutionB.airpollutionC.noisepollutionD.waterpollution2bListenagainandcompletethesentences.1.Theairisbadlypollutedbecausethereare___________ontheroadthesedays.2.Factoriesthatburncoalalso________theairwithalotofblacksmoke.morecarspollute3.Thereisalsotoomuchrubbishandwaste.People_________________thingseveryday.4.Peoplearealsolitteringin______________likeparks.Thisisturningbeautifulplacesintougly(丑陋的)ones.arethrowingawaypublicplacesUsetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.2cTheairhasbecomereallypollutedaroundhere.I’mgettingveryworried.Yes,Iusedtobeabletoseestarsinthesky.Theproblemisthat…Whatshouldwedotosavetheearth?1.Turnoffthelightswhenyouleavearoom.关掉2.stopridingincars3.stopusingpapertowelsornapkins（餐巾，餐巾纸）4.recyclebooksandpaper回收利用5....2dRead2dandcompletethechart.ProblemsSolvingproblemsairpollutionwastepollutionrubbishtakethebus,subwayorrideabikeinsteadofdrivingbringabagtogoshopping,nevertakewoodenchopsticksorplasticforksbutusetheonesathomewhilebuyingtakewayfoodthrowrubbishinthebinsJasonandSusan,whatareyourideasforsolvingtheseproblems?Languagepoints1.Thisisturningbeautifulplacesintouglyones.turn…into…把……变成……e.g.Theicyrainseemedliketoturnintosnow.冻雨似乎又变成雪花的模样。2.It’sgoodforhealthanditdoesn’tcostanything!costv.花费；使付出指花费金钱，主语通常是物。cost的过去式和过去分词均为cost。e.g.ThenewshirtcostMr.Wang200yuan.王先生花了200元买了新衬衫。Howmuchdoesthenewcomputercost?新电脑花了多少钱？take,spend,pay&costtake，spend，pay和cost都可以表示“花费”，但它们的用法各有不同。1)take多表示花费时间，常用于Ittakessb.sometimetodosth.这一句型中，其中it作形式主语。e.g.Itusuallytakesme40minutestocookthedinner.2)spend多表示花费时间和金钱，主语通常是人，常用于sb.spend(s)sometime/moneyonsth.和sb.spend(s)sometime/money(in)doingsth.两种句型。e.g.Davidspent2,000yuanonthenewmachine.Myfatherspendsanhour(in)watchingthenewsonTVeveryday.3)pay多表示花费金钱，主语通常是人，常用于sb.pay(s)somemoneyforsth.句型。e.g.Tommypaid20yuanforhisbreakfastyesterday.4)cost多表示花费金钱，主语通常是物，常用于sth.cost(s)(sb.)somemoney句型。e.g.ThenewdresscostLinda88yuan.根据句意用take,spend,pay或cost的适当形式填空。1.Thatnewcar________themlotsofmoney.2.Mona__________50yuanonthebooksjustnow.3.Itusually_______meanhourtodomyhomework.costspenttakes4.Youshould__________sometimepracticingyourpronunciation.5.Mybrother_______6,000yuanforthenewcomputeryesterday.spendpaid3.Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!makeadifference(to…)(对……)产生影响或作用e.g.Doyouthinkhiswordswouldmakeanydifferencetothefinaldecision?你认为他的话会对最后的决定产生